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April Weather in Kastav, Croatia

Last updated: August 23, 2025

In April, the average temperature in Kastav, Croatia hovers around 10°C (51°F), with a minimum of -7°C (20°F) and a pleasant maximum of 25°C (77°F). Expect 136 mm (5.4 in) of precipitation spread over 11 days, contributing to an average humidity of 73%. Weather in this region can be both crisp and refreshing!

April Temperature in Kastav

In April in Kastav, the average temperature is 10°C (51°F). The maximum can reach 25°C (77°F), while the minimum can drop as low as -7°C (20°F). Be prepared for a wide range of temperatures if you're planning to travel during this time.

April Weather in Kastav: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Kastav, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kastav, April typically has an average temperature of 10°C (51°F), with highs reaching up to 25°C (77°F) and lows dropping to around -7°C (20°F).
JanFebMarAprMayJunJulAugSepOctNovDec343943505868707061534537
Data source: Temperature data for Kastav generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

April Precipitation in Kastav

In Kastav in April, the total precipitation amount reaches 136 mm (5.4 in) over the course of 11 days.

April Precipitation Trends in Kastav

The chart displays monthly precipitation patterns in Kastav, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Kastav, April typically receives around 136 mm (5.4 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec91175128136214110117120219170217205
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Kastav

In Kastav in April, humidity is 73%. With an average temperature of 10°C (51°F), this humidity feels like a chilly dampness that can make outdoor activities uncomfortable, causing your clothes to cling to your skin and a persistent coolness that seeps into your bones, which might deter long excursions without proper layering.

April Average Humidity in Kastav

This chart illustrates the average monthly humidity levels in Kastav, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Kastav is approximately 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%82%73%73%70%69%63%51%64%83%89%88%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Kastav

In Kastav in April, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Kastav.

Maximum UV Index Levels in Kastav for April

The chart shows the monthly maximum UV Index (UVI) for Kastav in April, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In April, the maximum UV index in Kastav typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235789987532
Data source: Kastav April UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How April Weather in Kastav Compares to Other Months

Weather in Kastav varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Kastav, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Kastav, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)91 mm (3.6 inches)88%low
February Weather4°C (39°F)175 mm (6.9 inches)82%moderate
March Weather6°C (43°F)128 mm (5.0 inches)73%moderate
April Weather10°C (51°F)136 mm (5.4 inches)73%high
May Weather14°C (58°F)214 mm (8.4 inches)70%very high
June Weather20°C (68°F)110 mm (4.3 inches)69%very high
July Weather21°C (70°F)117 mm (4.6 inches)63%very high
August Weather21°C (71°F)120 mm (4.7 inches)51%very high
September Weather16°C (62°F)219 mm (8.6 inches)64%high
October Weather12°C (53°F)170 mm (6.7 inches)83%moderate
November Weather7°C (45°F)217 mm (8.5 inches)89%moderate
December Weather3°C (38°F)205 mm (8.1 inches)88%low

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